Volume designation varies: from 1823-1827 called v. 1-12; from 1827-1907 issued in 2 unnumbered vols. per year; from 1907-1960 called v. 174-279; from 1960-1989 issued in two unnumbered volumes per year; from 1990- called v. 335, no. 8680-
Issued 1842-1901 also in an American edition (called: London lancet, 1842-1892; Lancet, 1895-1897; and: New York lancet, 1898-1901); issued in a North American edition, July 2, 1966-
Selected articles are also published at monthly intervals in Spanish, Italian, German, and French editions of the Lancet
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